Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Geomagnetic storm wikipedia , lookup
Planets in astrology wikipedia , lookup
Definition of planet wikipedia , lookup
Advanced Composition Explorer wikipedia , lookup
Heliosphere wikipedia , lookup
Standard solar model wikipedia , lookup
Late Heavy Bombardment wikipedia , lookup
History of Solar System formation and evolution hypotheses wikipedia , lookup
Origins of the Solar System Guided Notes • Solar Nebula Hypothesis -- video-http://www.youtube.com/watch?v=PL3YNQK960Y • Questions from the video… – How long ago did our solar system begin to form? • – What were the two main gasses in the cloud that formed our solar system? • – ______________________________________ What is it called when dust and rocks stick together due to mutual gravity? • – _____________________________________ The birth of the sun was marked by the beginning of what process? • – ______________________________________ _____________________________________ Because of the cooler conditions and abundance of ice and gas, the materials in the outer regions of the solar system formed what type of planets? • ______________________________________ Origins of the Solar System • • • The Solar Nebula Hypothesis: – Planets form at the same time and from the same cloud of dust as a ____________ – These nebula are often referred to as “stellar nurseries” Step 1- Protostellar Nebula – A large cloud of gas a dust began to ____________________ and ___________ – Mostly H and He Step 2- Sun’s Formation – As the protostellar nebula contracted, it formed a flat __________ with a bulge at its center – As the pressure and heat grew, it triggered nuclear _______________, and the sun was born. • • Step 3- Planet Formation – Planets began to form from the remaining protostellar materials through _________________________ (smashing together) and __________________________ (solidifying of gas and ice particles) – Inner planets and outer planets formed in slightly different ways due to their distances from the sun and the available ______________________ in those areas Step 4- Clearing the Nebula – – • • Remains of the protostellar ________________ were cleared away by: • Solar wind • Sweeping-up of space debris by planets This was a time of heavy bombardment by asteroids and ____________________ Planet formation in other systems – Many young stars in the Orion Nebula are surrounded by dust disks: – Probably sites of __________________ ___________________________ right now! New discoveries in planet formation – Video highlighting recent discovery made by the ALMA Radio telescope in Chile